read the text.\nto the naked eye, mars seems as distant as the stars. but humans may set foot on the red…

read the text.\nto the naked eye, mars seems as distant as the stars. but humans may set foot on the red planet in the near future, according to scientists at the national aeronautics and space administration (nasa). to make it happen, nasa is pursuing creative solutions to the problems posed by deep space. specially designed habitats and spacesuits may offer a defensive shield to protect astronauts from extended exposure to radiation. nasa is also working on an electric propulsion system that draws energy from the sun. this system would let ships refuel in deep space, without space stations nearby. most ambitious of all, nasa is studying supersonic retropropulsion, a process that fires engines during landing, to help spacecraft land on marss surface without crashing.\nmatch the problems with their solutions.\nlarge spacecraft are difficult to land safely.\nspacecraft expose astronauts to dangerous levels of radiation.\nspacecraft cannot refuel in deep space.\nproblem\nsolution\nnasa may equip ships with special habitats.\nspacecraft may draw energy from the sun.\nspacecraft can use supersonic retropropulsion.

read the text.\nto the naked eye, mars seems as distant as the stars. but humans may set foot on the red planet in the near future, according to scientists at the national aeronautics and space administration (nasa). to make it happen, nasa is pursuing creative solutions to the problems posed by deep space. specially designed habitats and spacesuits may offer a defensive shield to protect astronauts from extended exposure to radiation. nasa is also working on an electric propulsion system that draws energy from the sun. this system would let ships refuel in deep space, without space stations nearby. most ambitious of all, nasa is studying supersonic retropropulsion, a process that fires engines during landing, to help spacecraft land on marss surface without crashing.\nmatch the problems with their solutions.\nlarge spacecraft are difficult to land safely.\nspacecraft expose astronauts to dangerous levels of radiation.\nspacecraft cannot refuel in deep space.\nproblem\nsolution\nnasa may equip ships with special habitats.\nspacecraft may draw energy from the sun.\nspacecraft can use supersonic retropropulsion.

Answer

Brief Explanations:

  1. For "Large spacecraft are difficult to land safely", the solution is "Spacecraft can use supersonic retropropulsion" as it helps with landing without crashing.
  2. For "Spacecraft expose astronauts to dangerous levels of radiation", the solution is "NASA may equip ships with special habitats" which offer a defensive shield against radiation.
  3. For "Spacecraft cannot refuel in deep space", the solution is "Spacecraft may draw energy from the sun" which allows for refueling in deep - space without nearby space stations.

Answer:

Large spacecraft are difficult to land safely - Spacecraft can use supersonic retropropulsion. Spacecraft expose astronauts to dangerous levels of radiation - NASA may equip ships with special habitats. Spacecraft cannot refuel in deep space - Spacecraft may draw energy from the sun.